17 [This word, not yet technical, as with us, is thus noted as curious. Of its force see Professor Caird, Encyc. Britannic., sub voce"Metaphysic."]

18 See Aristotle, De Anim., ii. r.

19 Literally, "out of tune."

20 These works must be among Aristotle's lost writings (see Fabricius' Bibl. Graec., t. iii. pp. 232, 404). We have no work of Aristotle's expressly treating "of God." However, the Stagyrite's theology, such as it is, is unfolded in his Metaphysics. See Macmahon's analysis prefixed to his translation of Aristotle's Metaphysics, Bohn's Classical Library.